Answer:

Sea divers carry oxygen gas cylinders along with them because there is no free oxygen in the sea water since the little dissolved oxygen present in water can't be used for breathing by divers. It can be used only by aquatic animals.

Verified answer

Solution :-

• Divers carry oxygen cylinders with them as the bottom of sea has low levels of oxygen also known as hypoxia. The deficiency of oxygen in bottom waters changes the type of organisms also. They are mostly small and fast growing and can tolerate low concentrations of oxygen. At bottom only bacteria and fungi can survive.

Reason :-

• The deficiency of oxygen in bottom waters changes the type of organisms also. They are mostly small and fast-growing and can tolerate low concentrations of oxygen. At the bottom only bacteria and fungi can survive.

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